const { defineConfig } = require('@vue/cli-service')

const path = require('path')

function resolve(dir) {
  return path.join(__dirname, dir)
}

module.exports = defineConfig({
  transpileDependencies: true,
  publicPath: '/',
  // // 在npm run build 或 yarn build 时 ，生成文件的目录名称（要和baseUrl的生产环境路径一致）（默认dist）
  outputDir: 'dist',
  // // 用于放置生成的静态资源 (js、css、img、fonts) 的；（项目打包之后，静态资源会放在这个文件夹下）
  assetsDir: 'static',
  // // 是否开启eslint保存检测，有效值：ture | false | 'error'
  lintOnSave: false,
  // // 如果你不需要生产环境的 source map，可以将其设置为 false 以加速生产环境构建。
  // productionSourceMap: false,
  // // webpack-dev-server 相关配置
  devServer: {
    host: '0.0.0.0',
    port: 82,
    open: true,
    proxy: {
      // detail: https://cli.vuejs.org/config/#devserver-proxy
      ['/dev-api']: {
        target: `http://localhost:2345`,
        changeOrigin: true,
        pathRewrite: {
          ['^' + '/dev-api']: ''
        }
      }
    },
  },
  configureWebpack: {
    name: '疫情可视化',
    resolve: {
      alias: {
        '@': resolve('src')
      }
    }
  },
  chainWebpack(config) {
    config.plugins.delete('preload') // TODO: need test
    config.plugins.delete('prefetch') // TODO: need test

    // set svg-sprite-loader
    config.module
      .rule('svg')
      .exclude.add(resolve('src/assets/icons'))
      .end()
    config.module
      .rule('icons')
      .test(/\.svg$/)
      .include.add(resolve('src/assets/icons'))
      .end()
      .use('svg-sprite-loader')
      .loader('svg-sprite-loader')
      .options({
        symbolId: 'icon-[name]'
      })
      .end()

    // config
    //   .when(process.env.NODE_ENV !== 'development',
    //     config => {
    //       config
    //         .plugin('ScriptExtHtmlWebpackPlugin')
    //         .after('html')
    //         .use('script-ext-html-webpack-plugin', [{
    //           // `runtime` must same as runtimeChunk name. default is `runtime`
    //           inline: /runtime\..*\.js$/
    //         }])
    //         .end()
    //       config
    //         .optimization.splitChunks({
    //           chunks: 'all',
    //           cacheGroups: {
    //             libs: {
    //               name: 'chunk-libs',
    //               test: /[\\/]node_modules[\\/]/,
    //               priority: 10,
    //               chunks: 'initial' // only package third parties that are initially dependent
    //             },
    //             elementUI: {
    //               name: 'chunk-elementUI', // split elementUI into a single package
    //               priority: 20, // the weight needs to be larger than libs and app or it will be packaged into libs or app
    //               test: /[\\/]node_modules[\\/]_?element-ui(.*)/ // in order to adapt to cnpm
    //             },
    //             commons: {
    //               name: 'chunk-commons',
    //               test: resolve('src/components'), // can customize your rules
    //               minChunks: 3, //  minimum common number
    //               priority: 5,
    //               reuseExistingChunk: true
    //             }
    //           }
    //         })
    //       config.optimization.runtimeChunk('single'),
    //       {
    //         from: path.resolve(__dirname, './public/robots.txt'), // 防爬虫文件
    //         to: './' // 到根目录下
    //       }
    //     }
    //   )
  }
})
